Alamo 1900 manual Troubleshooting Guide

OPERATION

OPERATION

21. TROUBLESHOOTING GUIDE

Problem	Possible Cause	Remedy
Boom Breaks Back	Work Port Relief Malfunction	Test to confirm, Adjust or Replace as needed
Too Easily	or Failure
	Swing Cylinder Failure	Test to Confirm, Rebuild or replace as needed
	Cutting head "Plowing" in	Operator Error, Operator Training
	Ground
	Operator Travelling Too Fast	Operator Error, Operator Training
Boom Drops When	Low Oil Level on Boom	Fill oil and bleed system of air
Two Functions	Function System
Actuated	Failed One way Flow	(Gravity Aided Functions Only) Confirm and
	Restrictor in valve	replace
	Defective or damaged	Repair or Replace as needed
	Controller
	Incorrect Hose Size to	Replace with proper OEM part
Boom Moves on Its	Cylinder(s)
	Defective or Damaged	Repair or Replace as required.
Own (Under Power w/	Joystick Controller
no function actuated)
Electronic Joystick
Models	Improper adjustment of	Adjust to locate proper neutral setting per the
	Joystick potentiometer gear	Service Manual
	timing
	Solenoid Valves stuck due	Repair or replace as required. Flush and fill
	to contamination	Hydraulic System
	Failed O-ring on Solenoid	Replace the O-ring with proper replacement
	Valves	parts
	C.A.N. System Improperly	Consult a Factory Trained Service Technician
	Adjusted	to facilitate the proper adjustment of the system
	Valve Main Spool Bent or	Replace the Valve Section
	Stuck
	Improper Wiring	Confirm and Repair
	Defective or Damaged	Replace the module(s)
	Control Module(s)
Boom Moves on Its	Defective or Damaged	Repair or replace as required
Own (Under Power w/	Joystick
no function actuated)
Mechanical Joysticks
with Cables	Cables Sticking
	Bent too sharply	Install new cable and route to provide adequate
		bend radius
	Overheated due to contact	Replace Cables and insulate from Hydraulic
	with hydraulic components	Components
	Connection at valve	Repair or replace as required
	damaged or failed
	Main Spool in Valve Stuck or	Repair or replace as required
	bent
1900 07/11	Operation Section 4-44

© 2011 Alamo Group Inc.